Solve for s
s=-7\pi ^{2}\approx -69.087230808
Assign s
s≔-7\pi ^{2}
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s=\frac{1}{2}\pi ^{2}\left(-14\right)
Subtract 34 from 20 to get -14.
s=-7\pi ^{2}
Multiply \frac{1}{2} and -14 to get -7.
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